Waterproof structure of planting top plate

By setting up multiple waterproof barriers on the planting roof, the problem of water penetration during irrigation is solved, achieving efficient waterproofing and wall protection, and enhancing the building's waterproof performance and durability.

CN223497453UActive Publication Date: 2025-10-31HUIZHOU HUIYANG DISTRICT SECOND CONSTR ENG CO LTD
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Patent Information

Application Number
CN202423043576.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-10-31
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

The existing waterproof structure of the planting roof is prone to water seepage when irrigating flowers, grass and trees, which can lead to damage to the interior of the building.

Method used

The system employs a multi-layered barrier structure, including a vegetation layer, geotextile, drainage board, fine aggregate concrete protective layer, waterproof components, construction joints, rubber waterstops, and double-sided reactive adhesive waterproof membrane, forming a highly efficient waterproof system to prevent irrigation water and rainwater from penetrating.

Benefits of technology

It effectively prevents irrigation water and rainwater from seeping into the building, reducing the risk of corrosion and damage to the building's interior, while providing comprehensive protection for the walls and improving the building's durability and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of building waterproofing, and discloses a planting top plate waterproof structure which comprises a vegetation layer, geotechnical cloth is arranged on the lower surface of the vegetation layer, a hydrophobic plate is arranged on the lower surface of the geotechnical cloth, and a fine aggregate concrete protective layer is arranged on the lower surface of the hydrophobic plate. A waterproof assembly is arranged on the lower surface of the fine aggregate concrete protection layer, construction joints are formed under the waterproof assembly, a rubber water stop belt is arranged between the construction joints, and a double-face reaction adhesive waterproof roll is arranged on the adjacent side of the construction joints. According to the multi-layer barrier, the vegetation layer, the geotechnical cloth, the hydrophobic plate, the fine aggregate concrete protection layer, the waterproof assembly, the construction joint, the rubber waterstop, the double-sided reaction adhesive waterproof coiled material and the like are arranged. The combination of the hierarchical structures provides efficient waterproof protection, and irrigation water or rainwater is effectively prevented from permeating into the structure, so that the risks of water permeation, corrosion and damage in the building are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of building waterproofing, and in particular to a waterproof structure for a green roof. Background Technology

[0002] A green roof is a structure that allows for the planting of vegetation or lawns on the roof or other platform of a building. This typically involves creating a layer of soil or a growing medium on the roof and then planting a variety of plants, including grasses, flowers, shrubs, and even small trees. Such roofs are also known as "green roofs" or "eco-roofs." Effective waterproofing is required for rooftop planting to prevent moisture from seeping into the building structure.

[0003] Existing waterproof structures with green roofs typically require irrigation of the vegetation on their surface to prevent them from dying. However, this irrigation can lead to water seepage, which may negatively impact the building's interior and reduce the practicality of the waterproof structure. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a waterproof structure for a planting roof, which improves upon the existing technology, which suffers from water seepage when irrigating flowers, grass and trees, leading to damage to the internal structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for a planting roof, comprising a vegetation layer, a geotextile on the lower surface of the vegetation layer, a drainage board on the lower surface of the geotextile, a fine aggregate concrete protective layer on the lower surface of the drainage board, a waterproof component on the lower surface of the fine aggregate concrete protective layer, a construction joint directly below the waterproof component, a rubber waterstop between the construction joints, and a double-sided reactive adhesive waterproof membrane on the adjacent side of the construction joint.

[0006] The above technical solutions achieve highly efficient waterproofing, preventing irrigation water and rainwater penetration.

[0007] Furthermore, the waterproof component includes an isolation layer, the upper surface of which is disposed on the lower surface of the fine aggregate concrete protective layer, the lower surface of which is provided with a modified bitumen root-penetration resistant waterproof membrane, and the lower surface of the modified bitumen root-penetration resistant waterproof membrane is provided with a waterproof coating.

[0008] The above technical solutions achieve a more efficient prevention of water seepage, thereby preventing water damage to the interior of buildings.

[0009] Furthermore, one side of the outer wall of the double-sided reactive adhesive waterproof membrane is provided with filler soil, and one side of the outer wall of the filler soil is provided with a foamed polyethylene sheet protective layer.

[0010] The above technical solutions effectively prevent damage to the wall.

[0011] Furthermore, a single-sided reactive adhesive waterproof membrane is provided on one side of the outer wall of the foamed polyethylene sheet protective layer, and a concrete layer is provided on one side of the outer wall of the single-sided reactive adhesive waterproof membrane.

[0012] The above technical solution achieves the effect of further preventing the side walls from being damaged by rainwater.

[0013] Furthermore, a leveling layer is provided on one side of the outer wall of the concrete layer, and an anti-mildew layer is provided on one side of the outer wall of the leveling layer.

[0014] The above technical solutions achieve the effect of protecting the wall while also improving its aesthetic appearance.

[0015] Furthermore, the hydrophobic plate is a plastic plate.

[0016] The above technical solutions achieve the effect of facilitating vegetation support.

[0017] Furthermore, the isolation layer is a polyvinyl chloride isolation layer.

[0018] The above technical solutions achieve the effect of ensuring that the building has excellent waterproof performance and durability.

[0019] Furthermore, the leveling layer is a cement-limestone mortar layer.

[0020] The above technical solutions provide comprehensive thermal insulation, waterproofing, and structural flatness, thereby increasing the durability and sustainability of buildings.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model utilizes a multi-layered barrier system, including a vegetation layer, geotextile, a drainage board, a fine aggregate concrete protective layer, waterproof components, construction joints, rubber waterstops, and double-sided reactive adhesive waterproof membrane. This combination of layers provides highly efficient waterproofing protection, effectively preventing irrigation water or rainwater from seeping into the structure, thereby reducing the risk of moisture penetration, corrosion, and damage to the building's interior.

[0023] 2. In this invention, the outer wall of the double-sided reactive adhesive waterproof membrane is provided with multiple protective layers, including a filling soil layer, a foamed polyethylene sheet protective layer, a single-sided reactive adhesive waterproof membrane, a concrete layer, a leveling layer, and a mildew-proof layer. This provides comprehensive protection for the wall, including waterproofing, insulation, and mildew prevention. By using the high-density foamed polyethylene sheet protective layer and other protective layers, the wall structure can be effectively isolated from external environmental damage. This helps maintain the integrity and long-term durability of the wall, reducing the need for repair and maintenance. Attached Figure Description

[0024] Figure 1 This is a cross-sectional schematic diagram of a waterproof structure for a planting roof proposed in this utility model;

[0025] Figure 2 This is a plan view of a waterproof component for a waterproof structure of a planting roof slab proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the filling soil for a waterproof structure of a planting roof proposed in this utility model.

[0027] Legend:

[0028] 1. Vegetation layer; 2. Geotextile; 3. Drainage board; 4. Fine aggregate concrete protective layer; 5. Waterproofing components; 501. Isolation layer; 502. Modified bitumen root-penetration resistant waterproof membrane; 503. Waterproof coating; 6. Construction joint; 7. Rubber waterstop; 8. Double-sided reactive adhesive waterproof membrane; 9. Fill soil; 10. Foamed polyethylene sheet protective layer; 11. Single-sided reactive adhesive waterproof membrane; 12. Concrete layer; 13. Leveling layer; 14. Anti-mildew layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1-2This utility model provides an embodiment of a waterproof structure for a planting roof, comprising a vegetation layer 1, a geotextile 2 on the lower surface of the vegetation layer 1, a drainage board 3 on the lower surface of the geotextile 2, a fine aggregate concrete protective layer 4 on the lower surface of the drainage board 3, a waterproof component 5 on the lower surface of the fine aggregate concrete protective layer 4, a construction joint 6 directly below the waterproof component 5, a rubber waterstop 7 between the construction joints 6, and a double-sided reactive adhesive waterproof membrane 8 on the adjacent side of the construction joint 6; the waterproof component 5 includes an isolation layer 501, the upper surface of the isolation layer 501 being disposed on the lower surface of the fine aggregate concrete protective layer 4, a modified bitumen root-penetration resistant waterproof membrane 502 being disposed on the lower surface of the isolation layer 501, and a waterproof coating 503 being disposed on the lower surface of the modified bitumen root-penetration resistant waterproof membrane 502.

[0031] Specifically, the drainage board 3 is a plastic board, 25 mm in size, made of plastic. A 150g geotextile 2 is then evenly laid on the upper surface of the drainage board 3, facilitating the planting of vegetation. Below the drainage board 3, a smooth-surfaced fine-aggregate concrete with a compressive strength of 20 MPa per square millimeter is laid, reinforced with 5 mm diameter steel bars arranged at 150 mm intervals in two directions. It should be noted that the longitudinal and transverse compartment spacing is no more than 6 meters. Finally, a 0.5 mm diameter insulating layer made of polyvinyl chloride is installed downwards. Layer 501, consisting of a 4 mm thick modified bitumen root-penetration resistant waterproof membrane 502 and a 2.0 mm thick waterproof coating 503 made of non-curing rubber asphalt, forms a waterproof component 5. This achieves high-performance protection against irrigation water or rainwater infiltration. Construction joints 6 guide cracks to specific locations, making crack control easier and reducing random cracking that would occur without them. A concrete interface agent is evenly applied between the construction joints 6 to fill micro-cracks and pores, reducing the penetration of moisture and other harmful substances. The concrete interface agent prevents moisture from penetrating the concrete structure, reducing the risk of corrosion and damage. A rubber waterstop 7 between the construction joints 6 effectively prevents moisture from entering the structure. A 2.0 mm thick double-sided reactive adhesive waterproof membrane 8 is applied to the outside of the construction joints 6 to further enhance the waterproofing.

[0032] Reference Figure 1 and Figure 3A filling soil 9 is provided on one side of the outer wall of the double-sided reactive adhesive waterproof membrane 8, and a foamed polyethylene sheet protective layer 10 is provided on one side of the outer wall of the filling soil 9; a single-sided reactive adhesive waterproof membrane 11 is provided on one side of the outer wall of the foamed polyethylene sheet protective layer 10, and a concrete layer 12 is provided on one side of the outer wall of the single-sided reactive adhesive waterproof membrane 11; a leveling layer 13 is provided on one side of the outer wall of the concrete layer 12, and an anti-mildew layer 14 is provided on one side of the outer wall of the leveling layer 13.

[0033] Specifically, the process involves compacting the outer wall of the double-sided reactive adhesive waterproof membrane 8 by filling it with soil 9, followed by laying a 7 mm thick foamed polyethylene sheet protective layer 10 from the inside out. It should be noted that the density of the foamed polyethylene sheet protective layer 10 is not less than 30 kg per cubic meter. Then, a 1.5 mm thick single-sided reactive adhesive waterproof membrane 11 is applied to waterproof the internal structure. Next, a concrete layer 12 and a 15 mm thick leveling layer 13 made of cement-lime mortar with a 1:1:6 ratio are applied sequentially, using two coats for even leveling. Finally, two coats of putty are applied evenly to the outermost layer, and a mildew-resistant layer 14 made of white interior wall mildew-resistant paint is applied in combination with one primer and two top coats to further protect the wall.

[0034] Reference Figure 1-3 The hydrophobic board 3 is made of plastic, the fine stone concrete protective layer 4 is made of fine stone concrete, the isolation layer 501 is a polyvinyl chloride isolation layer, the waterproof coating 503 is made of non-curing rubber asphalt, and the leveling layer 13 is a cement limestone mortar layer.

[0035] Specifically, the hydrophobic board 3 is made of 25 mm thick plastic, the fine stone concrete protective layer 4 is made of 70 mm thick C20 fine stone concrete, the isolation layer 501 is made of 0.5 mm thick polyvinyl chloride material, the modified bitumen root-penetration resistant waterproof membrane 502 is 4.0 mm thick and evenly laid, the waterproof coating 503 is 2.0 mm thick non-curing rubber asphalt, the double-sided reactive adhesive waterproof membrane 8 is 2.0 mm thick and evenly laid, the foamed polyethylene sheet protective layer 10 is 7 mm thick and evenly laid, the single-sided reactive adhesive waterproof membrane 11 is 1.5 mm thick and evenly laid, and the leveling layer 13 is 15 mm thick cement-gravel mortar with a 1:1:6 ratio.

[0036] Working principle: When constructing a waterproof structure for a planting roof, firstly, apply two coats of putty (one primer and two topcoats) to the area to be constructed, then apply white interior wall anti-mildew paint. Next, cast reinforced concrete on top, smoothing and polishing it like a floor. Then, from bottom to top, apply waterproof coating 503, modified bitumen root-penetration resistant waterproof membrane 502, and an isolation layer 501 in sequence. This achieves highly efficient waterproofing and prevents water seepage during vegetation irrigation. A fine stone concrete protective layer 4 is laid on top of the waterproof components 5, followed by a drainage board 3, geotextile 2, and vegetation layer 1, laid evenly in sequence. The design facilitates planting by setting construction joints 6 between the top slab and the side walls, allowing for slight movement of materials during temperature changes, reducing internal stress, and thus lowering the risk of crack formation and propagation. Rubber waterstops 7 are installed between construction joints 6 to prevent water seepage. Furthermore, double-sided reactive adhesive waterproof membrane 8 is installed on the adjacent side of construction joint 6 to further prevent water seepage. Finally, by installing filling soil 9, foamed polyethylene sheet protective layer 10, and single-sided reactive adhesive waterproof membrane 11 from the inside out on the side walls, water seepage in the side walls is prevented.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof structure for a planted roof, comprising a vegetation layer (1), characterized in that: The lower surface of the vegetation layer (1) is provided with geotextile (2), the lower surface of the geotextile (2) is provided with a drainage board (3), the lower surface of the drainage board (3) is provided with a fine stone concrete protective layer (4), the lower surface of the fine stone concrete protective layer (4) is provided with a waterproof component (5), a construction joint (6) is provided directly below the waterproof component (5), a rubber waterstop (7) is provided between the construction joints (6), and a double-sided reactive adhesive waterproof membrane (8) is provided on the adjacent side of the construction joint (6).

2. The waterproof structure for a planting roof as described in claim 1, characterized in that: The waterproof component (5) includes an isolation layer (501), the upper surface of which is disposed on the lower surface of the fine stone concrete protective layer (4), the lower surface of which is provided with a modified bitumen root-penetration resistant waterproof membrane (502), and the lower surface of which is provided with a waterproof coating (503).

3. The waterproof structure for a planting roof as described in claim 1, characterized in that: The outer wall of the double-sided reactive adhesive waterproof membrane (8) is provided with a filling soil (9), and the outer wall of the filling soil (9) is provided with a foamed polyethylene sheet protective layer (10).

4. The waterproof structure for a planting roof as described in claim 3, characterized in that: A single-sided reactive adhesive waterproof membrane (11) is provided on one side of the outer wall of the foamed polyethylene sheet protective layer (10), and a concrete layer (12) is provided on one side of the outer wall of the single-sided reactive adhesive waterproof membrane (11).

5. The waterproof structure for a planting roof as described in claim 4, characterized in that: A leveling layer (13) is provided on one side of the outer wall of the concrete layer (12), and an anti-mildew layer (14) is provided on one side of the outer wall of the leveling layer (13).

6. The waterproof structure for a planting roof as described in claim 1, characterized in that: The hydrophobic plate (3) is a plastic plate.

7. The waterproof structure for a planting roof as described in claim 2, characterized in that: The isolation layer (501) is a polyvinyl chloride isolation layer.

8. The waterproof structure for a planting roof as described in claim 5, characterized in that: The leveling layer (13) is a cement limestone mortar layer.